In the article he goes on to discuss two of Darwin's big ideas and writes this:
Darwin’s second big idea was that Nature is always ruthless: that the strong push out the weak, that compassion and compromise are for [s]issies whom Nature throws to the wall. Darwin borrowed the phrase “survival of the fittest” from the now forgotten and much discredited philosopher Herbert Spencer.To be sure, Darwin was opposed to slavery but not because he recognized the equality of the races. He clearly believed that whites were more highly evolved than, and in many ways superior to, blacks and famously elaborates on that belief in his Descent of Man:
He invented a consolation myth for the selfish class to which he belonged, to persuade them that their neglect of the poor, and the colossal gulf between them and the poor, was the way Nature intended things. He thought his class would outbreed the “savages” (ie the brown peoples of the globe) and the feckless, drunken Irish.
Stubbornly, the unfittest survived. Brown, Jewish and Irish people had more babies than the Darwin class. The Darwinians then had to devise the hateful pseudo-science of eugenics, which was a scheme to prevent the poor from breeding.
We all know where that led, and the uses to which the National Socialists put Darwin’s dangerous ideas.
At some future period, not very distant as measured by centuries, the civilised races of man will almost certainly exterminate, and replace, the savage races throughout the world. At the same time the anthropomorphous apes, as Professor Schaaffhausen has remarked will no doubt be exterminated. The break between man and his nearest allies will then be wider, for it will intervene between man in a more civilised state, as we may hope, even than the Caucasian, and some ape as low as a baboon, instead of as now between the negro or Australian and the gorilla. [Emphasis mine]Such passages from Darwin arguably provided more ammunition for the pernicious propaganda of white supremacists in the 19th and 20th centuries than did any Confederate soldier or officer. When the mobs get done purging our public spaces of all the monuments to these relatively inconsequential figures perhaps they'll turn their attention toward those whose ideas really count.
On the other hand, Darwin, despite his racist views, is a revered saint on the left so his memorials are probably safe.
Equally secure are any memorials to Margaret Sanger, the founder of Planned Parenthood, whose ambition it was to limit the production of black babies. Sanger is also a progressive saint so the mob won't be looking for her portraits to deface and burn.
It's too bad for those saddened to see the assaults on Robert E. Lee's monuments that Lee was never able to declare himself to be a Darwinian or pro-choice. If he had, ironically, his statues would be safe today.